Security Basics mailing list archives

Re: security products


From: Meenal Mukadam <meenal.mukadam () gmail com>
Date: Thu, 19 Feb 2009 11:40:56 +0530

Hi Juan,

You can have different mechanisms in place. Few are as follows:

1) Password protection: You can have password protection. Password can
be given to only those who need the content.
But: Such passwords can be easily broken. So if the information is
very critical, avoid using this method.

2) Documents can be encrypted. Mr. Shreyas has covered it well in his
great response.

3) Access controls: Data compartmentalization can be used. Wherein the
Information assets can be clearly classified. They can be profiled.
Resource and privilege allocation can be decided accordingly.

4) Policy based controls: When documents are placed in a central
repository you can have a mechanism to watermark them. Usage and
disclosure can be controlled by having confidentiality agreements,
policy and procedures for the usage (viewing, modifying, updating,
deleting....). For example if the document is watermarked
'Confidential' the confidentiality agreement, usage policy and
procedures document would dictate the appropriate usage, and also what
would be the consequences if they weren't followed. (Trust me when I
say that when the consequences are grave only a highly motivated
individual would try and leak the individual).

5) Logs: You can log various events relating to document usage. But
only this wont help. You even have to make sure that the employees
know that their document usage is being monitored. Again consequences
have to be clearly stated and dictated in case of non compliance (with
the company's procedures).

6) Anti-malwares:  Have a good anti-malware software in place to
prevent infections (especially to safeguard against spywares).

7) Awareness/Training: Conduct Awareness and Training programs to
educate employees to prevent even accidental leakage of information.

You can even combine two three of these mechanisms together to improve
the overall security mechanism for securing the documents. Hope this
answers your question.


Regards,

Meenal A. Mukadam





On Wed, Feb 18, 2009 at 10:42 PM, Juan Pablo Macias <jpmacias () gmail com> wrote:

Hi everybody.

A friend asked for my advice, so now i ask the experts. He has a
windows network with many shared excel files. Some of them have
sensitive information, information about his clients, but all of them
are required to be shared. Each share is password protected. He is
worried that, for example, one of his employees takes an important
file from the shared network and sells it.

Is there a way, in this scenario, to control who can access what? or
to avoid copying files away from the shared pc, or to allow to make
changes, but not to copy the file to another location? A possible
solution would be to password protect or encrypt the files, but i
don't think it would be be feasible it talking about some hundred
files. Is there software that already takes care or this?

In the long term, my suggestion would be to put all excel files into a
formal database and implement access control there, maybe even a web
application.

What are your suggestions?

Thanks in advance.

Juan Pablo

--
To follow the path,
look to the master,
follow the master,
walk with the master,
see through the master,
become the master



--
Meenal A. Mukadam

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are my highest aspirations.
I may/maynot reach them,
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